int rt_heap_delete_inner(RT_HEAP *heap, void __user *mapaddr)
{
int err = 0;
spl_t s;
if (!xnpod_root_p())
return -EPERM;
xnlock_get_irqsave(&nklock, s);
heap = xeno_h2obj_validate(heap, XENO_HEAP_MAGIC, RT_HEAP);
if (!heap) {
err = xeno_handle_error(heap, XENO_HEAP_MAGIC, RT_HEAP);
xnlock_put_irqrestore(&nklock, s);
return err;
}
xeno_mark_deleted(heap);
/* Get out of the nklocked section before releasing the heap
memory, since we are about to invoke Linux kernel
services. */
xnlock_put_irqrestore(&nklock, s);
/*
* The heap descriptor has been marked as deleted before we
* released the superlock thus preventing any sucessful
* subsequent calls of rt_heap_delete(), so now we can
* actually destroy it safely.
*/
#ifdef CONFIG_XENO_OPT_PERVASIVE
if (heap->mode & H_MAPPABLE)
err = xnheap_destroy_mapped(&heap->heap_base,
__heap_post_release, mapaddr);
else
#endif /* CONFIG_XENO_OPT_PERVASIVE */
err = xnheap_destroy(&heap->heap_base, &__heap_flush_private, NULL);
xnlock_get_irqsave(&nklock, s);
if (err)
heap->magic = XENO_HEAP_MAGIC;
else if (!(heap->mode & H_MAPPABLE))
__heap_post_release(&heap->heap_base);
xnlock_put_irqrestore(&nklock, s);
return err;
}
int rt_heap_delete_inner(RT_HEAP *heap, void __user *mapaddr)
{
int err;
spl_t s;
if (!xnpod_root_p())
return -EPERM;
xnlock_get_irqsave(&nklock, s);
heap = xeno_h2obj_validate(heap, XENO_HEAP_MAGIC, RT_HEAP);
if (!heap) {
err = xeno_handle_error(heap, XENO_HEAP_MAGIC, RT_HEAP);
xnlock_put_irqrestore(&nklock, s);
return err;
}
xeno_mark_deleted(heap);
/* Get out of the nklocked section before releasing the heap
memory, since we are about to invoke Linux kernel
services. */
xnlock_put_irqrestore(&nklock, s);
/*
* The heap descriptor has been marked as deleted before we
* released the superlock thus preventing any subsequent call
* to rt_heap_delete() to succeed, so now we can actually
* destroy it safely.
*/
#ifndef __XENO_SIM__
if (heap->mode & H_MAPPABLE)
xnheap_destroy_mapped(&heap->heap_base,
__heap_post_release, mapaddr);
else
#endif
{
xnheap_destroy(&heap->heap_base, &__heap_flush_private, NULL);
__heap_post_release(&heap->heap_base);
}
return 0;
}
